Precursory Ag-bipyridine 2D coordination polymer: a new and efficient route for the synthesis of Agnanoparticles

Abstract

A solid phase grinding of a unique framework-builder 2,2′ bipyridine with AgNO₃ has resulted in the efficient formation of a novel 2D coordination polymer of an Ag(I) precursor salt. The structural investigation of the crystalline precursor complex reveals formation of a short Ag–Ag bond. A crystalline precursor salt is transformed to silver nanoparticles (NPs) on thermolysis via the calcination–reconstruction method. The supramolecular preorganization of the precursor salt in the solid-state has a significant role in the formation of Ag NPs. It is an efficient route for the synthesis of Ag NPs in the solid state in bulk without using a reducing agent and stabilizer. The Ag NPs have uniform size ditribution.